Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Masashi, Niwano"'
Autor:
Teruo Aoki, Akihiro Hachikubo, Motoshi Nishimura, Masahiro Hori, Masashi Niwano, Tomonori Tanikawa, Konosuke Sugiura, Ryo Inoue, Satoru Yamaguchi, Sumito Matoba, Rigen Shimada, Hiroshi Ishimoto, Jean-Charles Gallet
Publikováno v:
Annals of Glaciology, Vol 65 (2025)
We developed a Handheld Integrating Sphere Snow Grain Sizer (HISSGraS) for field use to measure the specific surface area (SSA) of snow. In addition to snow samples, HISSGraS can directly measure snow surfaces and snow pit walls. The basic measuremen
Externí odkaz:
https://doaj.org/article/8c85fd7866824f748fe97b94379776b7
Autor:
Yukihiko Onuma, Nozomu Takeuchi, Jun Uetake, Masashi Niwano, Sota Tanaka, Naoko Nagatsuka, Teruo Aoki
Publikováno v:
Journal of Glaciology, Vol 69, Pp 487-499 (2023)
Glacier phototroph blooms on the surfaces of ice sheets and glaciers cause albedo reduction, leading to increased melting rates. We observed seasonal changes in the abundance of phototrophs on the Qaanaaq Ice Cap in northwestern Greenland from June t
Externí odkaz:
https://doaj.org/article/d4d7b9a459084950983a8f150447a72c
Autor:
Jason E. Box, Kristian P. Nielsen, Xiaohua Yang, Masashi Niwano, Adrien Wehrlé, Dirk van As, Xavier Fettweis, Morten A. Ø. Køltzow, Bolli Palmason, Robert S. Fausto, Michiel R. van den Broeke, Baojuan Huai, Andreas P. Ahlstrøm, Kirsty Langley, Armin Dachauer, Brice Noël
Publikováno v:
Meteorological Applications, Vol 30, Iss 4, Pp n/a-n/a (2023)
Abstract Greenland rainfall has come into focus as a climate change indicator and from a variety of emerging cryospheric impacts. This study first evaluates rainfall in five state‐of‐the‐art numerical prediction systems (NPSs) (CARRA, ERA5, NHM
Externí odkaz:
https://doaj.org/article/6e6a9449f0f44a43a921d783b25c9514
Publikováno v:
GEUS Bulletin, Vol 47, Iss 0, Pp 1-9 (2021)
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) provides surface meteorological and glaciological measurements from widespread on-ice automatic weather stations since mid-2007. In this study, we use 105 PROMICE ice-ablation time ser
Externí odkaz:
https://doaj.org/article/2294f1775fee486e88121ef69546937f
Autor:
Baptiste Vandecrux, Jason E. Box, Adrien Wehrlé, Alexander A. Kokhanovsky, Ghislain Picard, Masashi Niwano, Maria Hörhold, Anne-Katrine Faber, Hans Christian Steen-Larsen
Publikováno v:
Remote Sensing, Vol 14, Iss 4, p 932 (2022)
The optical diameter of the surface snow grains impacts the amount of energy absorbed by the surface and therefore the onset and magnitude of surface melt. Snow grains respond to surface heating through grain metamorphism and growth. During melt, liq
Externí odkaz:
https://doaj.org/article/5296e1f50b1d4dfd8847f0b031e6db26
Autor:
Nozomu Takeuchi, Ryutaro Sakaki, Jun Uetake, Naoko Nagatsuka, Rigen Shimada, Masashi Niwano, Teruo Aoki
Publikováno v:
Annals of Glaciology, Vol 59, Pp 21-30 (2018)
Cryoconite holes are water-filled cylindrical holes formed on ablation ice surfaces and commonly observed on glaciers worldwide. Temporal changes of cryoconite holes characteristically
Externí odkaz:
https://doaj.org/article/5ece8e17581d4ccaba9c3c0c2afd7731
Publikováno v:
Annals of Glaciology, Vol 58, Pp 181-192 (2017)
To better understand the processes controlling recent mass loss of peripheral glaciers and ice caps in northwestern Greenland, we measured surface mass balance (SMB), ice velocity and near-surface ice temperature on Qaanaaq Ice Cap in the summers of
Externí odkaz:
https://doaj.org/article/534716543ee24ecfb8db61e8dc689090
Autor:
Yukihiko Onuma, Nozomu Takeuchi, Jun Uetake, Masashi Niwano, Sota Tanaka, Naoko Nagatsuka, Teruo Aoki
Publikováno v:
Journal of Glaciology. 69:487-499
Glacier phototroph blooms on the surfaces of ice sheets and glaciers cause albedo reduction, leading to increased melting rates. We observed seasonal changes in the abundance of phototrophs on the Qaanaaq Ice Cap in northwestern Greenland from June t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cf6ff0d9e8cd925fc5eb2b45190e804
https://doi.org/10.1017/jog.2022.76
https://doi.org/10.1017/jog.2022.76
Biological processes on snow and glacier surfaces in the Arctic region play a key role causing albedo reduction called as “Bio-albedo effect” due to blooms of snow and glacier phototrophs. Because the bio-albedo effect varies temporally and spati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87485e70a3388a48141980b6914dd14d
https://doi.org/10.5194/egusphere-egu23-3146
https://doi.org/10.5194/egusphere-egu23-3146
Autor:
Motoshi Nishimura, Teruo Aoki, Masashi Niwano, Sumito Matoba, Tomonori Tanikawa, Tetsuhide Yamasaki, Satoru Yamaguchi, Koji Fujita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373bd3280b35de86c573058bd3fe3d87
https://doi.org/10.5194/essd-2023-116-supplement
https://doi.org/10.5194/essd-2023-116-supplement